document.write( "Question 472196: factor completely: 256x4 - 81y4 \n" ); document.write( "

Algebra.Com's Answer #323785 by mananth(16946) $\"\"$ $\"About$

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256x4 - 81y4\r
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\n" ); document.write( "\n" ); document.write( " $\"%2816x%5E2%2B9y%5E2%29%28%284x%2B3y%29%284x-3y%29%29\"$ \r
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